Toshiba Satellite L300 - Page 46

2Troubleshooting 2.3PowerSupply
2-8 SatelliteL300D/L305D/SatelliteProL300D/EQUIUML300D/SATEGOL300DMaintenanceManual
Procedure2ConnectionCheck
Powerissuppliedtothesystemboardasillustratedbelow:
AC
adaptor
Systemboard
ACpowercord
ACadaptorcord
Batterypack


Followthestepsbelowtocheckwhethereachconnectorhasbeenconnectedcorrectly:
Check1 MakesuretheACadaptorandACpowercordhavebeenfirmlyplugged
intotheDCINsocketandwalloutlet,respectively.Whentheyhavebeen
connectedcorrectly,performCheck2.
Check2 ConnectanewACadaptorandACpowercord.
• IftheDCINLEDdoesnotgoon,gotoProcedure3.
• IfthebatteryLEDdoesnotgoon,performCheck3.
Check3 Makesurethebatterypackhasbeencorrectlyinstalledinthecomputer.If
thebatteryLEDdoesnotgoonwhilethebatterypackhasbeeninstalled
correctly,gotoProcedure3.
Procedure3ReplacementCheck
Thesystemboard,powersupplyboard,orCPUmaybefaulty.Disassemblethecomputer
accordingtoChapter4andfollowthestepsbelow:

Check1 Replacethepowersupplyboardwithanewone.Ifthebatterypackisstill
notworkingproperly,performCheck2.

Check2 Replacethesystemboardwithanewone.Ifthebatterypackisstillnot
workingproperly,performCheck3.

Check3 ReplacetheCPUwithanewone.